Science a GoGo's Home Page Forums General Discussion Climate Change Forum A Bipolar Planet

Could anyone speculate as to what sort of environmental/astronomical climate shifts or conditions it would take to cause Earth's northern hemisphere to be completely covered in ice & snow, and Earth's southern hemisphere to engulfed in a perpetual heat, covered with sand dunes?

I am doing some research for a novel and would like to hear peoples opinions as to what would cause a climate condition such as this on Planet Earth.

-Eric

The northern hemisphere already has a thicker coating of gluggy cloud cover than the southern. I'd enjoyed looking at the receding land as I flew between NZ and Oz for a few years before I ventured north. I was looking forward to seeing Japan and Europe from the air. Not possible. Even in North africa it's unusual to see blue sky. I did manage to see blus sky in the far west of Ireland. You could work on that idea but the two hemisphers are not completely independent. Heat and pollution do cross the equator.